Ability of the larval ectoparasitoid Habrobracon hebetor (Say, 1836) (Hymenoptera: Braconidae) to locate the rice moth Corcyra cephalonica (Stainton, 1865) (Lepidoptera: Pyralidae) in bagged and bulk stored rice [Wirtsfindung des larvalparasitoiden habrobracon hebetor (say, 1836) (Hymenoptera: Braconidae) in gesacktem und geschüttetem reis gegenüber der reismotte Corcyra cephalonica (Stainton, 1865) (lepidoptera: Pyralidae)]

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dc.contributor.author Adarkwah, C.
dc.contributor.author Büttner, C.
dc.contributor.author Reichmuth, C.
dc.contributor.author Obeng-Ofori, D.
dc.contributor.author Prozell, S.
dc.contributor.author Schöller, M.
dc.date.accessioned 2019-04-24T13:02:36Z
dc.date.available 2019-04-24T13:02:36Z
dc.date.issued 2010-04
dc.identifier.citation Adarkwah, C., Büttner, C., Reichmuth, C. et al. J Plant Dis Prot (2010) 117: 67. https://doi.org/10.1007/BF03356337 en_US
dc.identifier.other Volume 117, Issue 2, pp 67–70
dc.identifier.other https://doi.org/10.1007/BF03356337
dc.identifier.uri http://ugspace.ug.edu.gh/handle/123456789/29518
dc.description.abstract The potential of using Habrobracon hebetor for the inundative biological control of Corcyra cephalonica in rice stored in jute bags and in bulk was assessed. Host-finding in the situation of bag storage was tested by preparing small jute bags measuring 18 × 16 cm filled with 5 kg of un-infested rice grains. In the first experiment, 60 larvae of C. cephalonica were released into the bag. The bag was placed in an empty climatized room with an area of 12.3 m2. Sixty H. hebetor adults (sex ratio of 1 male: 2 females) were released at a distance of 1.6 m away from the jute bag. The number of H. hebetor adults that entered the jute bag was counted daily for 8 days by opening the bag and counting the parasitoids. Only 3% of the parasitoids entered the jute bag. In a second experiment, 60 C. cephalonica larvae were placed inside a wire gauze cage within the jute bag. Ten H. hebetor adults were released into the jute bag. The bag was sealed. After 1 week the cage was removed, and the number of C. cephalonica as well as F1 generation of H. hebetor that emerged was recorded. H. hebetor was able to significantly reduce the number of C. cephalonica emerging from the bagged rice; the corrected mortality due to the parasitoid release was 92.13%. The emergence of H. hebetor progeny started on day 9 after the introduction of the parasitoids and continued until day 21. Host-finding in the situation of bulk rice was tested in glass cylinders (50 cm height, Ø = 25 cm) containing caged larvae at horizontal depths of 7 and 14 cm. H. hebetor was able to find its host C. cephalonica in both depths; significantly more F1 H. hebetor adults emerged from hosts placed 7 cm deep. The implications of these results with respect to the suitability of H. hebetor for the biological control of C. cephalonica in bagged and bulk rice are discussed. © Eugen Ulmer KG, Stuttgart. en_US
dc.language.iso en en_US
dc.publisher Journal of Plant Diseases and Protection en_US
dc.subject Horizontal depth en_US
dc.subject Host finding en_US
dc.subject Jute bags en_US
dc.subject Stored product pests en_US
dc.title Ability of the larval ectoparasitoid Habrobracon hebetor (Say, 1836) (Hymenoptera: Braconidae) to locate the rice moth Corcyra cephalonica (Stainton, 1865) (Lepidoptera: Pyralidae) in bagged and bulk stored rice [Wirtsfindung des larvalparasitoiden habrobracon hebetor (say, 1836) (Hymenoptera: Braconidae) in gesacktem und geschüttetem reis gegenüber der reismotte Corcyra cephalonica (Stainton, 1865) (lepidoptera: Pyralidae)] en_US
dc.type Article en_US


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